Topeka ? The Kansas House is preparing to debate a plan for drawing new state Senate districts backed by conservative Republicans.

A bill on Thursday’s agenda in the House would adjust the lines of the 40 Senate districts to account for changes in population over the past decade. A debate Wednesday was postponed.

Many legislators believe the map would help conservatives take control of the Senate from its moderate GOP leaders in this year’s elections.

But conservatives argue a bipartisan redistricting proposal approved last week by the Senate is designed to keep the chamber’s current leaders in power.

The battle among Republicans over Senate redistricting has stalled action on redrawing House, State Board of Education and congressional districts.

If the impasse drags on, the state could postpone its Aug. 7 primary election.